7/29/2019 Word File - Dhcp & Zone Xxxxx Local - CONF File

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# nano /etc/dhcpd.conf

#------ The following two line indicates Dynamic DNS updates are NOT

supported by linux DHCP service

ddns-update-style none;

#------ Your Network ID and Subnet

subnet 192.168.1.0 netmask 255.255.255.0 {

#------ default gateway for your clients, these are optional

option routers 192.168.1.1;

option subnet-mask 255.255.255.0;

#------ NIS domain name , Public domain name and DNS server IP,

these are optional

option nis-domain "xxxxxx.local";option domain-name "xxxxxx.local";

option domain-name-servers 192.168.1.20;

option domain-name-servers 192.168.1.30;

#------ The IP range that will be given to your clients and default

lease time, this is a must

range dynamic-bootp 192.168.1.200 192.168.1.202;

default-lease-time 21600;

max-lease-time 43200;

#------ Reserved IPs for clients

host srv2 {

option host-name "srv2.xxxxxx.local";

hardware ethernet 00:02:A5:E3:67:8E;

fixed-address 192.168.1.201;

}

}

Samantha IndikaMCT, ACS, CEH, CCNA, BCS (Certificate), MCS (SL),MCITP, MCTS,MCSE + Security + Messaging, MCSA + Security + Messaging, MCP

7/29/2019 Word File - Dhcp & Zone Xxxxx Local - CONF File

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# cd /var/named# nano zone. xxxxxx.local

Samantha IndikaMCT, ACS, CEH, CCNA, BCS (Certificate), MCS (SL),MCITP, MCTS,MCSE + Security + Messaging, MCSA + Security + Messaging, MCP

$TTL 2D

@ IN SOA xxxxxx.local. root.xxxxxx.local. (

00 ;serial

3H ;refesh

1H ;retry

1W ;expire

2D) ;minimum

; dns server names

IN NS srv.xxxxxx.local.

IN NS srv.xxxxxx.local.

IN NS srv.xxxxxx.local.

; address records

; Domain

xxxxxx.local. IN A 192.168.1.

; Private client IPs

srv1 IN A 192.168.1.14

srv1 IN A 192.168.1.15

srv1 IN A 192.168.1.16

; DNS server IPs

srv IN A 192.168.1.

srv IN A 192.168.1.

srv IN A 192.168.1.

1. TTL (Time to Live),how long our DNSserver will keepother domainsinformation

2. IN - Internet relatedInformation

3. SOA (Start ofAuthority), theserver is authorizedto resolve whichdomainsinformation

4. 00 Zone file serial

number, incrementthis by 1 after doingchanges to thezone before saving

5. 3H 3 hoursrefresh interval, theslave server willcheck the masterfor updates afterevery 3 hours.

6. 1H 1 hour retry

interval, if themaster server cantbe contacted theslave server willretry to contact itvery 1 hour

7. 1W 1 week expireinterval, if themaster server cantbe contacted within1 week the slaveserver will beexpired

8. 2D 2 daysminimum TTL, howlong other DNSservers can keepour domainsinformation

9. NS Name Server

10.MX Mail exchange

record